The association between NFKB1-94ins/del ATTG polymorphism and non-small cell lung cancer risk in a Chinese Han population.
- 15 May 2015
- journal article
- Vol. 8 (5), 8153-7
Abstract
This study aimed to clarify the influence of a common insertion/deletion polymorphism (-94ins/del ATTG, rs28362491) in the Nuclear factor-κB1 (NFKB1) promoter on non-small cell lung cancer (NSCLC) susceptibility. We genotyped the NFKB1 -94ins/del ATTG polymorphism by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method and assessed the association with NSCLC risk, clinicopathological parameters in a case-control study of 421 cases and 425 controls. Heterozygous (ID) genotype disclosed a statistically significantly increased risk of developing NSCLC (OR = 1.57, 95% CI 1.13-2.19, P = 0.007). Homozygous (II) genotype also showed an increased risk of NSCLC (OR = 1.87, 95% CI 1.27-2.75, P = 0.001). Statistically significant difference was observed when the patients and controls were compared according to ID + II versus DD (OR = 2.01, 95% CI 1.47-2.76, P<0.001). The I allele was significantly higher in the NSCLC cases compared to the controls (52.9% versus 45.1%). The I allele was significantly associated with NSCLC risk (OR = 1.37, 95% CI 1.12-1.65, P = 0.001). There was a significantly higher frequency of ID + II genotypes observed in smokers, compared to non-smokers (OR = 1.99, 95% CI 1.22-3.24, P = 0.005) and in patients with stage III + IV, compared to stage I + II (OR = 2.16, 95% CI 1.34-3.49, P = 0.002). This study suggested that NFKB1 -94ins/del ATTG polymorphism was significantly associated with NSCLC risk in Chinese Han population.Keywords
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